Tag: prospects

How did switch-hitting Red Sox OF prospect Anderson Fermin fare in 2025?

Though his performance may have been overshadowed by the likes of fellow 2024 international signees Justin Gonzales and Enddy Azocar, Red Sox outfield prospect Anderson Fermin undoubtedly impressed in his stateside debut last year.

Signed for $400,000 out of the Dominican Republic in January 2024, Fermin earned Dominican Summer League All-Star honors in his first taste of pro ball. Despite that nod, the Puerto Plata native entered 2025 with very little fanfare as he arrived in Fort Myers in early March for his first spring training in the United States.

Fermin remained in Fort Myers for extended spring training and then the start of the Florida Complex League season in early May. The switch-hitting speedster batted .283/.454/.377 with seven doubles, three triples, 14 RBIs, 32 runs scored, 25 stolen bases, 42 walks, and 35 strikeouts in 48 games (185 plate appearances) for the rookie-level FCL Red Sox.

The Florida Complex League regular season ended on July 24, and Fermin was ultimately recognized as a 2025 FCL All-Star. His year, however, did not end there. Fermin was promoted to Low-A Salem in late August and closed out his age-18 campaign by going 1-for-25 (.040) with one RBI, four runs scored, three stolen bases, eight walks, and 12 strikeouts in an eight-game cameo with the Red Sox’ Carolina League affiliate.

Altogether, Fermin slashed .245/.427/.325 with seven doubles, three triples, 15 RBIs, 36 runs scored, 28 stolen bases (in 34 attempts), 50 walks, and 47 strikeouts in 56 total games (220 plate appearances) between the FCL and Salem last season. That includes a .190/.393/.190 line against left-handed pitching and a .254/.432/.345 line against right-handed pitching.

Fermin, who turned 19 in September, was one of nine teenage position players to suit up for Salem in 2025. Among 47 Red Sox minor leaguers who, regardless of level, made at least 220 trips to the plate last year, Fermin ranked first in on-base percentage and speed score (8.7), second in walk rate (22.7 percent) and wOBA (.396), seventh in wRC+ (122), 13th in OPS, 19th in strikeout rate (21.4 percent), 20th in swinging-strike rate (11.3 percent), and 22nd in batting average, per FanGraphs.

On the other side of the ball, Fermin was originally scouted as a shortstop but made the transition to outfield upon entering the pro ranks. Between his stops in the FCL and Salem last season, the athletic 5-foot-11, 174-pounder made 26 starts in center, 13 starts in right, and 13 starts in left, committing two errors and recording two assists in 83 total defensive chances. He also made four starts at DH.

Still in search of his first professional home run, Fermin is currently ranked as Boston’s No. 56 prospect by SoxProspects.com, which notes that he “needs to get significantly stronger” if he wants to tap into his power. It also describes him as a “high-variance prospect due to lack of physicality, but has some interesting tools that could continue to improve as he physically matures.”

Barring a trade or other surprise move, Fermin is expected to return to Salem for the start of the 2026 minor league season. With that being said, it would not be terribly surprising to see him work his way to High-A Greenville before long.

(Picture of Anderson Fermin: Bryan Green/Flickr)

Which prospect did Red Sox acquire from White Sox for Jordan Hicks, David Sandlin?

The Red Sox swung a creative, financially motivated trade with the White Sox on Sunday that netted them salary relief, roster flexibility, and a new pitching prospect.

In exchange for right-handers Jordan Hicks and David Sandlin, along with $8 million in cash considerations and two players to be named later, Boston acquired minor league righty Gage Ziehl and one player to be named later from Chicago.

By dealing Hicks (who came over from the Giants as part of the blockbuster Rafael Devers trade last June) and Sandlin (an electrifying prospect who was added to the 40-man roster for Rule 5 Draft protection purposes in November), the Red Sox cleared two 40-man spots on Sunday, potentially paving the way for additional moves to be made more easily in the coming weeks.

Ziehl was originally selected by the Yankees in the fourth round (119th overall) of the 2024 draft out of Miami. The 22-year-old received an above-slot $637,000 signing bonus but did not make his professional debut until last April. He split the first four months of the 2025 season between New York’s Low-A, High-A, and Double-A affiliates before being dealt to the White Sox for outfielder Austin Slater on July 30.

From there, Ziehl posted a 4.01 ERA with 20 strikeouts to five walks in six starts (24 2/3 innings) for Chicago’s High-A affiliate to end the season. He finished the year having forged a 4.12 ERA (3.39 FIP) with 90 strikeouts to 19 walks in 22 total outings (21 starts) spanning 107 innings between Low-A (74 1/3 innings), High-A (28 2/3 innings), and Double-A (4 innings). Altogether, opposing hitters batted .274 against him.

Ziehl was ranked by Baseball America as the White Sox’ No. 21 prospect at the time of Sunday’s trade. The 6-foot, 223-pound hurler does not throw particularly hard but does know how to control and command the strike zone. He features a wide pitch mix that includes a 92 mph fastball that topped out at 95 mph last year, a mid-80s sweeper, an upper-80s cutter, and a scarcely-used 80 mph curveball.

Barring another move, Ziehl — who turns 23 in May — is likely to open the 2026 season in Double-A Portland’s starting rotation. He is not eligible for the Rule 5 Draft until 2027.

 (Picture of Gage Ziehl: Samuel Lewis/Icon Sportswire via Getty Images)

How did speedy Red Sox OF prospect Miguel Bleis fare in 2025?

Red Sox prospect Miguel Bleis is coming off a season in which he was named the organization’s Minor League Baserunner of the Year. This article will examine how the speedy outfielder fared on the 2025 campaign as a whole.

Due to a quad injury suffered late in spring training, Bleis did not make his season debut until High-A Greenville’s fifth game of the season on April 9. The 21-year-old then spent the better part of the next five months with the Drive, batting .226/.314/.422 with 15 doubles, one triple, 13 home runs, 41 RBIs, 48 runs scored, 20 stolen bases, 35 walks, and 75 strikeouts over 77 games (325 plate appearances). He was promoted to Double-A Portland on August 1.

Bleis’ promotion came one day after the Red Sox traded fellow outfielders James Tibbs III and Zach Ehrhard to the Dodgers for starter Dustin May. Though Bleis provided the Sea Dogs with much-needed outfield depth, the right-handed hitter struggled offensively down the stretch, slashing just .209/.263/.291 with six doubles, one home run, 10 RBIs, 10 runs scored, seven stolen bases, six walks, and 31 strikeouts in 30 games (118 plate appearances) to close out his season.

Altogether, Bleis slashed .220/.300/.385 (100 wRC+) with 21 doubles, one triple, 14 home runs, 51 RBIs, 58 runs scored, 27 stolen bases (in 33 attempts), 41 walks, and 106 strikeouts in a career-high 107 games (443 plate appearances) between Greenville and Portland. That includes a .169/.267/.292 line against lefties and a .237/.310/.412 line against righties.

As The Boston Globe’s Alex Speier noted in September, Bleis was the only Red Sox minor leaguer to hit 10-plus homers and steal 20-plus bases. Additionally, among the 19 in the system who made at least 400 trips to the plate last year, Bleis ranked first in fly ball rate (44.7%) and pull rate (62.4%), second in infield fly ball rate (36.5 percent), third in weighted stolen base runs (1.6), fifth in speed score (6.2), seventh in isolated power (.164), and ninth in walk rate (9.3%), per FanGraphs.

Defensively, Bleis saw playing time at all three outfield positions between his stops in Greenville and Portland last season. The athletic 6-foot-2, 205-pounder logged 480 innings in right, 347 2/3 innings in center, and (for the first time in his career) 34 2/3 innings in left, committing four errors and recording 10 assists in 210 total chances. He also made seven starts at DH.

Bleis, who turns 22 in March, received the largest bonus ($1.5 million) of any international free agent the Red Sox signed in 2021. The Dominican native burst onto the scene in 2022 by lighting up the rookie-level Florida Complex League and entered 2023 as a consensus top-100 prospect. That May, however, Bleis suffered a left shoulder subluxation that required season-ending surgery. Since then, he has shown flashes of his tantalizing potential, but has mostly been unable to put it all together on a consistent basis for an extended period.

Baseball America currently ranks Bleis as Boston’s No. 17 prospect. MLB Pipeline has him slightly higher at No. 13. Both outlets acknowledge that his power, speed, fielding, and arm strength tools grade within the 50-60 range on the 20-80 scouting scale, though his hit tool lags behind at 30-40.

After being left off the Red Sox’ 40-man roster in November, Bleis went unselected in December’s Rule 5 Draft. Barring a trade or other surprise move, he is projected to return to Portland for the start of his age-22 season in April. If he can adjust his approach at the plate while maintaining his power, it would not be surprising to see Bleis reach Triple-A Worcester before the end of the year.

(Picture of Miguel Bleis: Maddie Malhotra/Boston Red Sox/Getty Images)

How did power-hitting Red Sox OF prospect Justin Gonzales fare in 2025?

After playing a key role in winning a Dominican Summer League championship and being named the organization’s 2024 Latin Program Position Player of the Year in his professional debut, Red Sox outfield prospect Justin Gonzales took another step forward in 2025.

Gonzales, originally signed for $250,000 as an international free agent out of the Dominican Republic in January 2024, arrived in Fort Myers for his first spring training in the United States last March. At 6-foot-4 and 210 pounds, the then-18-year-old quite literally stood out on the backfields of the Fenway South complex.

Though he did not see any action in the Grapefruit League as a big league call-up, Gonzales suited up for the Red Sox in both the Spring Breakout and Futures at Fenway South prospect showcases on March 13 and 14, respectively. In the latter, the young slugger put his power on full display by crushing a no-doubt home run that left his bat at 110.4 mph over the faux Green Monster at JetBlue Park.

In the weeks that followed, Gonzales remained in Fort Myers for extended spring training and technically began his season in the rookie-level Florida Complex League. After just one game with the FCL Red Sox (in which he went 0-for-4 with an RBI and two strikeouts), Gonzales was promoted to Low-A Salem on May 6 and immediately became one of the youngest players in the Carolina League.

Given his youth, it should come as little surprise that Gonzales initially struggled while transitioning to full-season ball. Despite those early difficulties, the right-handed hitter broke through and emerged as one of Salem’s top offensive performers. He earned Carolina League All-Star honors as a result of batting .298/.381/.423 with 23 doubles, two triples, four home runs, 27 RBIs, 45 runs scored, 11 stolen bases, 35 walks, and 52 strikeouts in 81 games (357 plate appearances) for Boston’s Low-A affiliate before being promoted to High-A Greenville in late August.

From there, Gonzales closed out his season by going 8-for-43 (.186) in an 11-game cameo with the Drive. Overall, he slashed .281/.363/.390 with 23 doubles, two triples, four home runs, 32 RBIs, 50 runs scored, 12 stolen bases, 39 walks, and 65 strikeouts in 93 total games (410 plate appearances) between the FCL, Salem, and Greenville. That includes a .309/.420/.500 line against lefties and a .275/.350/.364 line against righties.

Among 19 Red Sox minor leaguers who made at least 400 trips to the plate in 2025, Gonzales (the youngest to reach that threshold) ranked second in batting average, wOBA (.370), and wRC+ (118), third in on-base percentage and strikeout rate (15.9%), fifth in OPS (.753), eighth in slugging percentage and walk rate (9.5%), and ninth in swinging-strike rate (11.7%), per FanGraphs. On the flip side, however, he posted the highest groundball rate (57.4%) in the group.

Defensively, Gonzales saw playing time at all three outfield spots between his stops in the FCL, Salem, and Greenville last season. The hulking outfielder logged 265 1/3 innings in right, 233 1/3 innings in center, and 145 2/3 innings in left, committing four errors and recording two assists in 151 total chances. He also made 16 starts at DH and has prior experience at first base.

Gonzales, who turned 19 in December, is ranked as the Red Sox’ No. 7 prospect by Baseball America and No. 5 by MLB Pipeline. Both outlets consider his power (55-60 on the 20-80 scouting scale) and outfield arm strength (60-70) among the best-graded tools in Boston’s farm system.

As highlighted in his Baseball America scouting report, Gonzales frequently generated exit velocities exceeding 100 mph last season, but nearly 60% of his contact came on the ground. If he can tweak his bat path to lift the ball more consistently — thereby tapping into his elite power potential — he could become “a monster” at the plate moving forward.

On that note, Gonzales is expected to return to Greenville for the start of the 2026 season. Such swing adjustments would likely work in his favor in the hitter-friendly South Atlantic League.

(Picture of Justin Gonzales: Maddie Malhotra/Boston Red Sox/Getty Images)

Why Red Sox pitching prospect Juan Valera could break out in 2026

At this time last year, Red Sox pitching prospect Juan Valera appeared primed to take another step forward in 2025.

Valera, originally signed for $45,000 as an international free agent out of the Dominican Republic in April 2023, put himself on the map in his stateside debut two seasons ago. The young right-hander forged a 1.99 ERA with 68 strikeouts to 28 walks in 18 outings (16 starts) spanning 63 1/3 innings between the rookie-level Florida Complex League and Low-A Salem. He held opposing hitters to a .125 batting average en route to being named an FCL All-Star and SoxProspects.com’s Pitcher of the Year.

Looking to build off significant momentum gained in 2024, Valera came into camp last spring stronger on both a physical and mental level, according to Red Sox senior director of player development Brian Abraham. Valera stood out by displaying an uptick in velocity and a sharper command of his secondaries on the backfields in Fort Myers. As a result, he was rewarded with an aggressive season-opening assignment to High-A Greenville.

When Greenville’s season began in early April, Valera was still a month-plus out from his 19th birthday, making him one of the youngest players at the High-A level. With just 23 career innings above rookie ball to that point, Valera unsurprisingly got off to a shaky start. In his first eight starts for the Drive, the righty posted a 5.40 ERA with 37 strikeouts to nine walks over 33 1/3 innings in which opponents batted .284 against him.

After turning 19 on May 18 and surrendering three runs (two earned) in 3 1/3 frames against Bowling Green a week later, Valera was placed on the injured list due to elbow soreness on May 27 and was not activated until late August. He then made two more (short) starts for Greenville before the season ended, allowing three earned runs on five hits, one walk, and nine strikeouts over 4 2/3 innings of work.

Altogether, Valera pitched to a 5.45 ERA (3.97 FIP) with 46 strikeouts to 10 walks in 10 starts (38 innings) for Greenville in 2025. Opponents batted .281 against him overall. That includes a .341 average against left-handed hitters and a .206 average against right-handed hitters.

Among 156 minor leaguers who threw at least 35 innings in the hitter-friendly South Atlantic League last year, Valera ranked 19th in xFIP (3.00), 23rd in walk rate (6%), 28th in walks per nine innings (2.37), 40th in strikeouts per nine innings (10.89), 52nd in strikeout rate (27.5%), and 62nd in swinging-strike rate (13.2%), per FanGraphs.

Both Baseball America and SoxProspects.com currently rank Valera as Boston’s No. 5 prospect; MLB Pipeline has him slightly lower at No. 12. Earlier this month, SoxProspects.com’s director of scouting Ian Cundall (writing for Baseball America) identified Valera as a potential breakout pitching prospect within the Red Sox system based on his under-the-hood numbers.

“Valera’s four-pitch mix brings a combination of power and surprising control, as he has three pitches with a strike rate over 65% and an in-zone rate over 50%,” Cundall wrote of the 6-foot-3, 205-pound hurler. “He can run his fastball up to 100 mph, but the pitch plays below its velocity due to its cut-over-ride shape. Even still, the power on it makes it tough on hitters, and it had a slightly above-average whiff rate in 2025.

“Valera’s feel for spin is advanced for his age,” added Cundall. “While his most-used secondary is his slider, his best is his sweeper. His sweeper is one of the hardest in the minors, averaging just under 87 mph with a spin rate over 2,700 rpm. It had a 69% strike rate and 43% whiff rate in 2025, making for one of the best combinations of those two stats in all of MiLB for sweepers as hard as his.”

Barring a trade or other surprise, Valera is likely to return to Greenville out of spring training for the start of his age-20 season. If he can stay healthy and further refine his arsenal, it would not be surprising to see him move up to Double-A Portland — and perhaps even Triple-A Worcester — before the 2026 campaign draws to a close.

(Picture of Juan Valera: Kelly O’Connor/sittingstill.smugmug.com)

Red Sox’ Mikey Romero ranked No. 5 third base prospect in baseball by MLB Pipeline

Earlier this week, MLB Pipeline ranked Red Sox minor league infielder Mikey Romero as one of the top 10 third base prospects in baseball heading into the 2026 season.

Romero slotted in at No. 5 on MLB Pipeline’s list behind the Brewers’ Andrew Fischer, the Mets’ Jacob Reimer, the Tigers’ Hao-Yu Lee, and the Athletics’ Tommy White. He placed ahead of the Diamondbacks’ LuJames Groover, the Blue Jays’ Juan Sanchez, the Dodgers’ Chase Harlan, the Brewers’ Brock Wilken, and the Giants’ Parks Harber.

Romero, who turned 22 last Monday, is currently ranked by MLB Pipeline as Boston’s No. 6 prospect. The left-handed hitter is coming off a solid season in which he batted .245/.300/.452 with 33 doubles, four triples, 17 home runs, 76 RBIs, 61 runs scored, five stolen bases, 34 walks, and 132 strikeouts in 111 games (489 plate appearances) between Double-A Portland and Triple-A Worcester. He led the organization in doubles, extra-base hits (54), and RBIs.

After drawing praise from Red Sox manager Alex Cora in spring training, Romero returned to Portland (where he got into 16 games to end a bounceback 2024 season) for the start of the 2025 campaign. Despite missing most of June with arm fatigue, he still hit .254/.315/.440 with 18 doubles, four triples, eight home runs, 40 RBIs, 40 runs scored, four stolen bases, 23 walks, and 74 strikeouts in 66 games (297 plate appearances) for the Sea Dogs before receiving a promotion to Worcester in early August.

Reaching the Triple-A level for the first time, Romero initially struggled out of the gate but powered his way through it by slashing .232/.276/.469 with 15 doubles, nine home runs, 36 RBIs, 21 runs scored, one stolen base, 11 walks, and 58 strikeouts in 45 games (192 plate appearances) for the WooSox to close out his season. That includes a .214/.258/.500 line against lefties and a .235/.280/.463 line against righties.

While an aggressive approach led to his strikeout and walk rates going in the wrong direction, Romero made plenty of hard contact in his first stint with the WooSox. Among Triple-A hitters who saw at least 700 pitches last year, Romero ranked in the 95th percentile in barrel rate (14 percent), the 92nd percentile in average exit velocity (91.2 mph), the 89th percentile in hard-hit rate (47.1 percent), and the 85th percentile in expected slugging percentage (.443), per Prospect Savant.

On the other side of the ball, Romero saw playing time at every infield position besides first base between his stops in Portland and Worcester last season. By the time he joined the WooSox in August, however, he had moved off shortstop and was used strictly at either second or third base. At the keystone, he logged 164 innings and committed four errors in 73 chances. At the hot corner, he logged 216 innings and committed two errors in 49 chances.

Though he is listed at 6-feet and 175 pounds, Romero is now up to at least 210 pounds, adding considerable strength over the last two years following a 2023 that was marred by a series of back injuries, including a stress fracture. This winter, he took part in Trevor Story’s camp for teammates in the Dallas area and was in attendance for the Red Sox’ rookie development program in Boston. Sandwiched in between that was an appearance at Fenway Fest on January 10.

Amidst a busy offseason, Romero spoke to reporters (including Bill Ballou of The Worcester Guardian and Peter Abraham of The Boston Globe) at Fenway Park last week about what specific areas of improvement he has focused on.

“The Red Sox do a good job of letting us know what we’ve got to be better at,” Romero said. “For me, it’s moving better laterally on defense, more arm strength. I take pride in my defense. I’m doing everything I can to know that, whatever pitcher is on the mound, they know that if the ball is hit to me, it’s an out.”

Romero, who was originally selected with the 22nd overall pick in the 2022 draft out of Orange (Calif.) Lutheran High School and then forwent his commitment to LSU by signing with the Red Sox for an under-slot $2.3 million, has put himself in a prime position to make his major league debut at some point in 2026. That is noteworthy when considering that he can become Rule-5 eligible for the first time later this year if he has not already been added to the 40-man roster by season’s end.

Given his emergence and sudden proximity to the big leagues, it would not be terribly surprising if Romero received his first non-roster invite to Red Sox spring training before camp begins in Fort Myers next month. He could join fellow infielder and rookie development program attendee Franklin Arias in that regard.

(Picture of Mikey Romero courtesy of the Boston Red Sox)

Top Red Sox prospect Franklin Arias aiming to ‘make it to the big leagues’ in 2026

After making good on his goal of reaching Double-A as a 19-year-old last season, top Red Sox prospect Franklin Arias is once again placing lofty expectations on himself heading into the 2026 campaign.

Speaking with reporters through an interpreter at the Red Sox’ rookie development program in Boston earlier this week, Arias made his goal for the upcoming season rather clear: “Make it to the big leagues.”

Arias, who turned 20 in November, is currently ranked by Baseball America as Boston’s No. 2 prospect (behind only left-hander Payton Tolle) and the No. 48 prospect in the sport. The native Venezuelan originally signed with the Red Sox for $525,000 as an international free agent in January 2023. He put himself on the map in his stateside debut the following year as he netted top prospect and MVP honors in the rookie-level Florida Complex League.

After ending the 2024 season at Low-A Salem, Arias broke camp with Boston’s Carolina League affiliate last spring. The right-handed hitter needed just 19 additional games, in which he batted .346/.407/.397, there before receiving a promotion to High-A Greenville in late April. He picked up where he left off by earning South Atlantic League Player of the Month honors for May, but began to cool off drastically heading into the summer.

Even after slashing just .265/.329/.380 in 87 games with Greenville, though, Arias earned another promotion to Double-A Portland in early September. In doing so, he joined Roman Anthony (2023) and Xander Bogaerts (2012) as the most recent Red Sox position players to reach the Double-A level as teenagers. He then closed out his season by going 12-for-46 (.261) with two doubles, two home runs, eight RBIs, four runs scored, one stolen base, no walks, and six strikeouts in a 10-game cameo with the Sea Dogs.

Overall, Arias slashed .278/.335/.388 with 27 doubles, one triple, eight home runs, 66 RBIs, 62 runs scored, 12 stolen bases, 38 walks, and 53 strikeouts in 116 total games (526 plate appearances) between Salem, Greenville, and Portland last year. That includes a .235/.307/.313 line against lefties and a .291/.343/.412 line against righties.

Among 36 Red Sox minor leaguers who made at least 300 trips to the plate in 2025, Arias ranked first in strikeout rate (10.1 percent), second in swinging-strike rate (5.3 percent), fourth in batting average, 12th in wRC+ (109), 13th in on-base percentage, 15th in OPS (.723) and wOBA (.342), and 16th in slugging percentage, per FanGraphs.

On the defensive side of things, which is where he stood out as an amateur, Arias saw the vast majority of his playing time last year come at shortstop. Listed at 5-foot-11 and 170 pounds throughout the season, the sure-handed infielder made 101 of his 116 starts between Salem, Greenville, and Portland at short, committing seven errors in 386 chances. He also started five games at second base and 10 games at DH.

“One of the things we’ve talked to him a lot about is his physicality,” Red Sox senior director of player development Brian Abraham said of Arias when speaking with The Boston Globe’s Tim Healey. “Continue to add strength, add size, and impact the baseball. Obviously, a really good defender, really good range, consistency in the field. Swing decisions have been phenomenal. Bat-to-ball skills have been really strong. But at the end of the day, him impacting the baseball consistently as he gets to the upper levels is really important.”

Arias, who was able to leave his home country following the United States ‘ capture and arrest of Venezuelan President Nicolas Maduro in time to attend the Red Sox’ rookie development program, told Healey that his focus over the course of the offseason has been working on his body.

“You can’t take anything for granted or settle with how you are right now,” said Arias. “I need to improve my other qualities [to] the same level as my defense.”

Barring a blockbuster trade or other surprise move, Arias is projected to return to Portland for the start of the upcoming season, so he will once again need to move up multiple levels if he is indeed intent on making his big league debut at some point this year.

In the more immediate future, it has yet to be determined if Arias and other prominent Red Sox prospects not on the 40-man roster (such as fellow infielder and rookie development program attendee Mikey Romero) will be receiving non-roster invites to major league spring training in Fort Myers next month. That decision is likely to come sooner rather than later.

(Picture of Franklin Arias: Kelly O’Connor/sittingstill.smugmug.com)

Which prospect did Red Sox trade to Athletics for Rule 5 pick Ryan Watson?

Following the conclusion of Wednesday’s Rule 5 Draft, the Red Sox swung a trade with the Athletics for a pitcher who had just heard his name called.

In exchange for right-hander Ryan Watson, whom the Athletics took from the Giants system with the eighth overall pick in the major league phase, the Red Sox sent infield/outfield prospect Justin Riemer and cash considerations to the A’s.

MassLive.com’s Chris Cotillo was the first to report news of the trade.

Riemer, who turns 24 in February, was not ranked among Boston’s top 60 prospects by SoxProspects.com. The Virginia native was originally selected by the Red Sox out of Wright State with the 133rd overall pick in the 2023 draft, which the club received as compensation for losing Nathan Eovaldi to the Rangers in free agency the previous winter. He received an above-slot $500,000 signing bonus but was recovering from a torn ACL at that time, which pushed his professional debut back until last July.

After splitting the remainder of the 2024 season between the Florida Complex League and High-A Greenville, Riemer spent the majority of 2025 with the latter affiliate. Though he was sidelined from April 16 to May 15 with a shoulder injury, the right-handed hitter batted .232/.423/.275 with six doubles, one home run, 16 RBIs, 33 runs scored, nine stolen bases, 64 walks, and 55 strikeouts in 76 games (279 plate appearances) for the Drive. He appeared in six games (August 23-24, September 10-14) across two separate stints with Double-A Portland as well, going 4-for-18 (.222) with one double, two RBIs, five runs scored, five walks, and five strikeouts.

Overall, Riemer slashed .231/.421/.276 with seven doubles, one home run, 18 RBIs, 38 runs scored, nine stolen bases, 69 walks, and 60 strikeouts in 82 total games (303 plate appearances) between Greenville and Portland this past season. Among 36 Red Sox minor leaguers who made at least 300 trips to the plate, Riemer ranked first in walk rate (22.8 percent), on-base percentage, and swinging-strike rate (3.2 percent), fourth in wRC+ (123), seventh in wOBA (.360), and ninth in strikeout rate (19.8 percent), per FanGraphs.

On the other side of the ball, Riemer saw playing time at five different positions between his stops in Greenville and Portland this year. The versatile 5-foot-10, 170-pounder logged 309 innings at second base, 179 innings at third base, 108 innings in left field, 40 innings in right field, and 14 innings at shortstop, committing eight errors in 299 total defensive chances. He also made three starts at DH.

Though he has yet to hit for much power to this point in his career, Riemer has drawn praise for his advanced approach, pitch recognition, and bat-to-ball skills. Those traits, among others, must have stood out to the Athletics when putting together this one-for-one swap with the Red Sox.

With that being said, Riemer — barring another move — seems likely to open the 2026 season with either the Athletics’ High-A or Double-A affiliate. It is worth noting that he is in line to become eligible for the Rule 5 Draft for the first time next winter.

(Picture of Justin Riemer: Kelly O’Connor/sittingstill.smugmug.com)

Which prospect did Red Sox acquire from Angels for Vaughn Grissom?

The Red Sox parted ways with infielder Vaughn Grissom on Tuesday by sending him to the Angels in a minor trade.

In exchange for Grissom, Boston simultaneously opened a 40-man roster spot ahead of Wednesday’s Rule 5 Draft and acquired outfield prospect Isaiah Jackson from Los Angeles.

Jackson, 21, was originally taken by the Astros in the 18th round of the 2022 draft out of Cienega High School in Arizona. Rather than enter the professional ranks at that time, though, the Vail, Ariz. native elected to honor his commitment to Arizona State. He played three seasons with the Sun Devils and batted .310/.402/.630 with 11 doubles, two triples, 18 home runs, 68 RBIs, 51 runs scored, 14 stolen bases, 28 walks, and 43 strikeouts in 60 games (251 plate appearances) as a junior this past spring en route to earning All-Big 12 First Team honors.

Coming off a standout junior season, Jackson was ranked as Baseball America’s No. 179 prospect in the 2025 draft class. This time around, the left-handed hitter was selected by the Angels in the eighth round (229th overall) of July’s draft and signed for an over-slot $297,500. He made his professional debut with Los Angeles’ High-A affiliate in early August and appeared in 10 games for the Tri-City Dust Devils, going 7-for-32 (.219) with one double, one home run, four RBIs, six runs scored, four walks, and 13 strikeouts. Defensively, he made nine starts in center field and did not commit an error in 81 innings there.

Before Tuesday’s trade, Jackson was slated to enter 2026 as Baseball America’s No. 25 Angels prospect. The publication notes that the 6-foot-3, 220-pounder is “a well-built left-handed-hitting center fielder who is a plus defender despite only average speed,” adding that “he has the bat speed to have solid power with a swing geared especially toward pullside damage, but there are some questions about how well he will hit against more advanced pitching, especially against breaking balls.”

Jackson, who turns 22 in May, becomes the latest 2025 draftee to be added by the Red Sox via trade in recent weeks, joining the likes of Luke Heyman (acquired from the Mariners) and Adonys Guzman (acquired from the Pirates). Barring another move, he appears likely to start the 2026 campaign at High-A Greenville.

(Picture of Isaiah Jackson: Kate Woolson/Texas Rangers/Getty Images)

Which prospects did Red Sox acquire from Pirates in Johan Oviedo trade?

In addition to right-hander Johan Oviedo, the Red Sox acquired pitching prospect Tyler Samaniego and catching prospect Adonys Guzman as part of their five-player trade with the Pirates on Thursday night.

Samaniego, who turns 27 next month, was originally selected by the Pirates in the 15th round (433rd overall) of the 2021 draft out of South Alabama. The left-hander received a $75,000 signing bonus and has since logged a 3.82 ERA with 182 strikeouts to 63 walks in 127 career minor league outings (two starts) totaling 158 innings.

Even though he has yet to pitch above the Double-A level, Samaniego was added to the Pirates’ 40-man roster last month to receive protection from next week’s Rule 5 Draft. The Red Sox opened a spot for Samaniego on their own 40-man roster by designating righty Cooper Criswell for assignment.

After ending 2024 on the 60-day injured list due to an elbow injury that required an internal brace, Samaniego did not make his 2025 season debut until May. He rehabbed with Pittsburgh’s Florida Complex League, Low-A, and High-A affiliates before rejoining Double-A Altoona in late June. From there, he posted a 3.08 ERA with 30 strikeouts to six walks in 20 relief appearances (26 1/3 innings) for the Curve. Opposing Eastern League hitters batted just .189 against him.

Listed at 6-foot-4 and 205 pounds, Samaniego operates with a mid-90s fastball that reached 97 mph in 2025, a low-to-mid-80s slider, and a “seldom-used” upper-80s changeup, according to Baseball America. He should provide the Red Sox with some much-needed left-handed relief depth after Brennan Bernardino (Rockies) and Chris Murphy (White Sox) were traded away last month.

Guzman, meanwhile, celebrated his 22nd birthday on Thursday. The Bronx, N.Y., native originally attended Boston College out of high school in 2023 before transferring to Arizona for his sophomore and junior seasons. He was selected by the Pirates in the fifth round (144th overall) of July’s draft after batting .328/.411/.496 with 12 doubles, nine home runs, 44 RBIs, 43 runs scored, 27 walks, and 32 strikeouts in 62 games (271 plate appearances) for the Wildcats this past spring.

Guzman was ranked by Baseball America as the No. 314 prospect in the 2025 draft class and signed with the Pirates for $496,500. The right-handed hitter made his professional debut in Low-A Bradenton’s penultimate game of the season and stood out by going 2-for-5 with one home run, two RBIs, and two runs scored. He also threw out one would-be base stealer.

Per his pre-draft Baseball America scouting report, Guzman, who is listed at 5-foot-11 and 221 pounds, “remains a glove-first catcher whose swing is often a bit stiff and pull-oriented, though he does have solid pullside power and the plate discipline you might expect of a catcher. His arm remains one of the best in class three years later, with excellent carry on his throws that should help control the running game.” 

Guzman is the third minor league catcher the Red Sox have acquired in the last three weeks, joining Ronny Hernandez (White Sox) and fellow 2025 draftee Luke Heyman (Mariners). He is a candidate to open the 2026 season at either Low-A Salem or High-A Greenville.

(Picture of Adonys Guzman: Erica Denhoff/Icon Sportswire via Getty Images)